Easy· Electrical Resistance in Conductors (Temperature Dependence of Resistance & Resistivity)· +4 / −1
Which of the following graph represents the variation of resistivity (ρ) with temperature (T) for copper ?
As the temperature increases, the electrical resistance:
NEET 2022 · Easy
Consider two circuits, (A) and (B), each having two resistors. One of them has a positive temperature coefficient of resistance, +α ,…
RE-NEET 2026 · Medium
The resistance of platinum wire at 0^C is 2\ Ω and 6.8\ Ω at 80^C . The temperature coefficient of resistance of the wire is :
NEET 2023 · Easy
The solids which have the negative temperature coefficient of resistance are :
NEET 2020 · Medium
A charged particle having drift velocity of 7.5×10^-4 m s ^-1 in an electric field of 3×10^-10 V m ^-1 , has a mobility in m ^2 V ^-1 s…
NEET 2020 · Easy
The color code of a resistance is given below : The values of resistance and tolerance, respectively, are :
NEET 2020 · Easy